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Neutrino decays and neutrino-electron elastic scattering in unparticle physics
Zhou S(周顺); Zhou, S
2008
发表期刊PHYSICS LETTERS B
卷号659期号:1-2页码:336-340
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
摘要Following Georgi's unparticle scheme, we examine the effective couplings between neutrinos and unparticle operators. As an immediate consequence, neutrinos become unstable and can decay into the unparticle stuff. Assuming the dimension transmutation scale is around Lambda(u) - 1 TeV, we implement the cosmological limit on the neutrino lifetime to constrain the neutrino-unparticle couplings for different scaling dimensions d. In addition, provided that the electron-unparticle coupling is restricted due to the precise measurement of the anomalous magnetic moment of electron, we calculate the unparticle contribution to the neutrino-electron elastic scattering. It is more important to jointly deal with the couplings of the unparticle to the standard model particles rather than separately. Taking into account both electron- and neutrino-unparticle couplings, we find that the scaling dimension of the scalar unparticle should lie in the narrow range 1 < d < 2 by requiring the observables to be physically meaningful. However, there is no consistent range of d for the vector unparticle operator. (C) 2007 Elsevier B.V. All rights reserved.
学科领域Physics
研究领域[WOS]Physics ; Physics
DOI10.1016/j.physletb.2007.10.081
URL查看原文
语种英语
研究领域[WOS]Physics ; Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000252878000050
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237042
专题理论物理室
作者单位中国科学院高能物理研究所
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GB/T 7714
Zhou S,Zhou, S. Neutrino decays and neutrino-electron elastic scattering in unparticle physics[J]. PHYSICS LETTERS B,2008,659(1-2):336-340.
APA 周顺,&Zhou, S.(2008).Neutrino decays and neutrino-electron elastic scattering in unparticle physics.PHYSICS LETTERS B,659(1-2),336-340.
MLA 周顺,et al."Neutrino decays and neutrino-electron elastic scattering in unparticle physics".PHYSICS LETTERS B 659.1-2(2008):336-340.
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